package com.linkstec.Callback;

import java.util.concurrent.Callable;

public class C implements Callable<Object> {
	private Callback callback = null;
	public void setCallback(Callback callback) {
		this.callback = callback;
	}
	@Override
	public Object call() throws Exception {
		Thread.sleep(3000);
		callback.onCompletion();
		return null;
	}

}
